F04B 2205/03
Pressure in the compression chamber
F04B2205/03 (Pressure in the compression chamber) appears on 160 US grants and 140 published applications in this corpus.
Search patents in F04B- Granted patents
- 160
- Published applications
- 140
- Assignees
- 116
- Inventors
- 301
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1992 | 5 | 0 |
| 1993 | 5 | 0 |
| 1994 | 2 | 0 |
| 1995 | 5 | 0 |
| 1996 | 5 | 0 |
| 1997 | 7 | 0 |
| 1998 | 6 | 0 |
| 1999 | 3 | 0 |
| 2000 | 6 | 0 |
| 2001 | 5 | 1 |
| 2002 | 4 | 1 |
| 2003 | 2 | 2 |
| 2004 | 1 | 2 |
| 2005 | 1 | 5 |
| 2006 | 3 | 0 |
| 2007 | 3 | 6 |
| 2008 | 2 | 3 |
| 2009 | 2 | 2 |
| 2010 | 3 | 1 |
| 2011 | 2 | 5 |
| 2012 | 3 | 12 |
| 2013 | 3 | 9 |
| 2014 | 9 | 8 |
| 2015 | 5 | 2 |
| 2016 | 5 | 9 |
| 2017 | 3 | 3 |
| 2018 | 5 | 10 |
| 2019 | 9 | 19 |
| 2020 | 7 | 9 |
| 2021 | 17 | 5 |
| 2022 | 8 | 6 |
| 2023 | 3 | 2 |
| 2024 | 5 | 6 |
| 2025 | 3 | 7 |
| 2026 | 3 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Monitoring method for monitoring the operation of a dosing pump and dosing pump system11 Aug 2026US 12,704,120 B2Grundfos Holding A/S
- Safety device for fluid ends11 Aug 2026US 12,704,426 B2Forum US, Inc.
- Device and method for monitoring oil pressure and gas pressure of diaphragm compressor20 Jan 2026US 12,529,374 B2Xi'an Jiao Tong University
- Automated valve actuation for frac fluid ends using position and/or pressure sensors30 Dec 2025US 12,510,068 B2Forum US, Inc.
- Economizer injection in a reciprocating compressor26 Aug 2025US 12,398,926 B2Carrier Corporation
- Hydraulic gas compressor24 Sep 2026US 2026/0286950 A1Magnokinetics Ltd
- Oil overflow control for diaphragm compressor3 Sep 2026US 2026/0258800 A1
- Automated valve actuation for frac fluid ends using position and/or pressure sensors26 Mar 2026US 2026/0085678 A1Forum US, Inc.
- Compressor system and refrigeration device29 Jan 2026US 2026/0028979 A1Daikin Industries, Ltd.
- Hermetic reciprocating compressor15 Jan 2026US 2026/0015998 A1Samsung Electronics Co., Ltd.
Most cited
By later US patents
- User interface and monitoring functions for automated peritoneal dialysis systems430US 5,438,510 ADEKA Products Limited Partnership · 1995
- Disposable cassette with negative head height fluid supply and method344US 5,302,093 AMcGaw, Inc. · 1994
- Disposable cassette with negative head height fluid supply277US 5,554,013 AMcGaw, Inc. · 1996
- Reducing fluid pressure spikes in a pumping system221US 10,393,108 B2Schlumberger Technology Corporation · 2019
- Cavitation limiting strategies for pumping system171US 10,134,257 B2Caterpillar Inc. · 2018